<template>
  <div>
    <el-form ref="from" label-width="80px">
      <el-form-item label="SPU名称">{{spu.spuName}}</el-form-item>
      <el-form-item label="SKU名称">
        <el-input placeholder="SKU名称" v-model="skuInfo.skuName"> </el-input>
      </el-form-item>
      <el-form-item label="价格(元)">
        <el-input placeholder="价格(元)" type="number" v-model="skuInfo.price"> </el-input>
      </el-form-item>
      <el-form-item label="重量(千克)">
        <el-input placeholder="重量(千克)" v-model="skuInfo.weight"> </el-input>
      </el-form-item>
      <el-form-item label="规格描述">
        <el-input type="textarea" rows="4" v-model="skuInfo.skuDesc"> </el-input>
      </el-form-item>
      <el-form-item label="平台属性">
        <el-form :inline="true" ref="from2" label-width="80px">
          <el-form-item :label="attr.attrName" v-for="(attr,index) in attrInfoList" :key="attr.id">
            <el-select placeholder="请选择" v-model="attr.attrIdAndValueId">
              <el-option :label="attrValue.valueName" :value="`${attr.id}:${attrValue.id}`" v-for="(attrValue,index) in attr.attrValueList" :key="attrValue.id"></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </el-form-item>
      <el-form-item label="销售属性">
        <el-form :inline="true" ref="from3" label-width="80px">
          <el-form-item :label="saleAttr.saleAttrName" v-for="(saleAttr,index) in spuSaleAttrList" :key="saleAttr.id">
            <el-select placeholder="请选择" v-model="saleAttr.attrIdAndValueId">
              <el-option :label="saleAttrValue.saleAttrValueName" :value="`${saleAttr.id}:${saleAttrValue.id}`" v-for="(saleAttrValue,index) in saleAttr.spuSaleAttrValueList" :key="saleAttrValue.id"></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </el-form-item>
      <el-form-item label="图片列表" >
        <el-table style="width: 100%" border :data="spuImageList" @selection-change="handleSelectionChange">
          <el-table-column
            type="selection"
            label="label"
            width="80"
          ></el-table-column>
          <el-table-column
            prop="prop"
            label="图片"
            width="width"
          >
            <template slot-scope="{row,$index}">
              <img :src="row.imgUrl" style="width:100px;height:100px" alt="">
            </template>
          </el-table-column>
          <el-table-column
            prop="prop"
            label="名称"
            width="width"
          ></el-table-column>
          <el-table-column
            prop="prop"
            label="操作"
            width="width"
          >
            <template slot-scope="{row,$index}">
              <el-button type="primary" v-if="row.isDefault==0" @click="changeDefault(row)">设置默认</el-button>
              <el-button v-else>默认</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="save">保存</el-button>
        <el-button @click="cancel">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  name: "skuForm",
  data() {
    return {
      spuImageList: [], //存储图片的信息
      spuSaleAttrList: [], //存储销属性
      attrInfoList: [], //存储平台属性的数据
      skuInfo: {
        category3Id: 0,//三级分类ID
        price: 0,//价格
        spuId: 0,//spuID
        tmId: 0,//ID
        weight: "",//重量
        skuDefaultImg: "",//默认图片的字段
        skuDesc: "",//描述
        skuName: "",//sku名称
        skuAttrValueList: [//平台属性
          // {
          //   attrId: 0,
          //   attrName: "string",
          //   id: 0,
          //   skuId: 0,
          //   valueId: 0,
          //   valueName: "string",
          // },
        ],
        skuImageList: [//收集图片列表
          // {
          //   id: 0,
          //   imgName: "string",
          //   imgUrl: "string",
          //   isDefault: "string",
          //   skuId: 0,
          //   spuImgId: 0,
          // },
        ],
        skuSaleAttrValueList: [//销售属性
          // {
          //   id: 0,
          //   saleAttrId: 0,
          //   saleAttrName: "string",
          //   saleAttrValueId: 0,
          //   saleAttrValueName: "string",
          //   skuId: 0,
          //   spuId: 0,
          // },
        ],
      },
      spu:{},
      imageList:[],//收集图片的数据字段:但是需要注意，收集的数据目前缺少isDefault字段， 将来提交给服务器数据的时候，需要整理参数
    };
  },
  methods: {
    //获取数据
    getData({ category1Id, category2Id, category3Id }, spu) {
      this.spu=spu
      //收集父组件给予的数据
      this.skuInfo.category3Id = category3Id
      this.skuInfo.spuId=spu.id
      this.skuInfo.tmId=spu.tmId
      //获取图片数据
      let result1 = new Promise((res, rej) => {
        this.$API.spu.reqSpuImageList(spu.id).then((e) => {
          res(e);
        });
      });
      //获取销售属性数据
      let result2 = new Promise((res, rej) => {
        this.$API.spu.reqSpuSaleAttrList(spu.id).then((e) => {
          res(e);
        });
      });
      //获取平台属性数据
      let result3 = new Promise((res, rej) => {
        this.$API.spu
          .reqAttrInfoList(category1Id, category2Id, category3Id)
          .then((e) => {
            res(e);
          });
      });
      Promise.all([result1, result2, result3]).then((res) => {
        console.log(res);
        res[0].data.forEach(v=>{v.isDefault = 0})
        this.spuImageList = res[0].data;
        this.spuSaleAttrList = res[1].data;
        this.attrInfoList = res[2].data;
        
      });
    },
    //取消摁钮
    cancel(){
      this.$emit('changeScene', {scene:0,flag:""});
      Object.assign(this._data,this.$options.data())
    },
    //table表格复选框摁钮的事件
    handleSelectionChange(params){
      this.imageList=params //获取到用户选中图片的信息数据，但是需要注意，当前收集的数据当中，缺少isDefault字段
    },
    //排他操作
    changeDefault(row){
      //图片列表的数据的isDefault字段变为0
      this.spuImageList.forEach(v=>{
        v.isDefault=0
      })
      //点击的那个图片的数据变为1
      row.isDefault=1
      //收集默认图片的地址
      this.skuInfo.skuDefaultImg = row.imgUrl;
    },
    //保存操作
    async save(){
      //整理参数
      //整理平台属性
      const { attrInfoList, skuInfo, spuSaleAttrList, imageList } = this;
      //整理平台属的数据
      skuInfo.skuAttrValueList = attrInfoList.reduce((prev, item) => {
        if (item.attrIdAndValueId) {
          const [attrId, valueId] = item.attrIdAndValueId.split(":");
          prev.push({ attrId, valueId });
        }
        return prev;
      }, []);
      //整理销售属性
      skuInfo.skuSaleAttrValueList = spuSaleAttrList.reduce((prev, item) => {
        if (item.attrIdAndValueId) {
          const [saleAttrId, saleAttrValueId] =
            item.attrIdAndValueId.split(":");
          prev.push({ saleAttrId, saleAttrValueId });
        }
        return prev;
      }, []);
      //整理图片的数据
      skuInfo.skuImageList = imageList.map((item) => {
        return {
          imgName: item.imgName,
          imgUrl: item.imgUrl,
          isDefault: item.isDefault,
          spuImgId: item.id,
        };
      });
      //发请求
      let result = await this.$API.spu.reqAddSku(skuInfo);
      if (result.code == 200) {
        this.$message({ type: "success", message: "添加SKU成功" });
        this.$emit('changeScene', {scene:0,flag:""});
        Object.assign(this._data,this.$options.data())
      }
    },
  },
};
</script>

<style>
</style>